[Changes in the fetoplacental system in threatened abortion].

Comprehensive assessment of the hormonal status of the fetoplacental system in 110 pregnant women, carried out over the course of treatment for threatened abortion, included radioimmunoassays of blood serum estriol, progesterone, and placental lactogen, cardiotocography of the fetus, ultrasonic fetometry and placentography. Trophic, hormonal, and hypoxic disorders of the fetoplacental system were revealed. The therapy resulted in essential improvement of the trophic and hypoxic conditions, though the hormonal function did not normalize as a rule.